Nice job. If you want the metal to look more "metalic' you might also try hammered paint. I often use Rustoleum, spray a bit into a small container and stipple it on with a brush.
This is oil base paint so if you are applying it to any type of foam use a water based primer first, two coats, let it completely dry, the apply the hammered paint.
Trial and error first is always a good idea.
Check out my 'Michael Tyler' Vectron clock.viewtopic.php?f=29&t=17706&p=125330&hilit=vectricon#p125330